4. Choose the correct word. (10 marks)

Choose the correct word

1. I'm busy now, so I'll see you later.


2. He was ill, so he went to the doctor.


3. They are sleeping now because they are tired.


4. She has got a broken leg because she had an accident.


5. The house was messy, so I cleaned it.

Answer: so, so, because, because, so.